JP3777528B2 - Indoor air maintenance device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an indoor air maintenance device applied to a house .
[0002]
[Prior art]
In recent years, volatile organic compounds and formaldehyde and other harmful gases have been generated from building materials used as interior materials for buildings such as apartment buildings, which has the potential to adversely affect the health of residents. Yes. As countermeasures for this, the so-called bake-out process that reduces the generation amount after moving in by keeping the room temperature high at the time of completion of the building and promoting the generation of harmful gases, or ventilating each room even after moving in It is said that it is necessary to exhaust the harmful gas sufficiently and it is considered to provide a ventilation device for each room.
[0003]
[Problems to be solved by the invention]
However, the optimum conditions such as the temperature condition and the required time for the effective bakeout process have not been established so far, and are merely implemented by trial and error. In addition, even if each room is equipped with a ventilator for exhausting harmful gases, its operation is left to the resident, so there is no guarantee that it will be carried out reliably, and conversely, excessive ventilation beyond necessity is assumed. Moreover, since continuous ventilation leads to an increase in the heating / cooling load, it cannot be an effective measure.
[0004]
In view of the above circumstances, an object of the present invention is to provide an apparatus for reliably and efficiently exhausting harmful gases generated indoors to keep indoor air clean.
[0009]
[Means for Solving the Problems]
The invention according to claim 1 is an indoor air maintenance apparatus that is applied to a house having a plurality of rooms that generate harmful gases and that maintains the indoor air in each room clean by exhausting from each room, An exhaust fan for sucking room air from the suction port provided in each room and exhausting it through the duct, a damper installed in the duct of each room, and a timer for opening each damper based on a predetermined program And a human sensor for detecting presence / absence of a person in each room and a window sensor for detecting the open / closed state of the window in each room, and the program is assumed to have a person in the room. In the time zone in which the damper is set to open only during a certain time zone and the program is set to open the damper, the human sensor is applied in preference to the program. It is configured to open the damper of the room on the condition that the presence of a person in the room is detected and the window sensor detects that the window is closed, and any of the dampers is opened. In this case, the exhaust fan is operated.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, one embodiment when the present invention is applied to a dwelling unit of an apartment will be described with reference to FIG.
[0012]
FIG. 1 shows an outline of a dwelling unit equipped with an indoor air maintenance device of the present embodiment. Reference numeral 1 is a living room such as a living room, a Western-style room, a Japanese-style room, etc. Each suction port 2 is connected to an exhaust fan 4 through a duct 3, and an electric damper 5 is attached in the middle of each duct 3, and the damper 5 in each chamber is attached to the exhaust fan 4. Each of the timers 6 is independently opened and closed based on a predetermined program, and when any one of the dampers 5 is opened, the exhaust fan 4 is operated in conjunction therewith. Each chamber 1 is ventilated independently and automatically based on a preset program.
[0013]
In this case, the damper 5 opening / closing program set for each room, that is, the ventilation program for each room may be set as appropriate so that the concentration of harmful gases generated from each room can be sufficiently reduced. It may be possible to ventilate intermittently every hour, but in this example, the damper is used only in the time zone in which it is assumed that there are people in each room corresponding to the purpose and life pattern of each room. 5 is set to open. For example, when the target room is a bedroom, the damper 5 is opened and ventilated between the normal bedtime and the wake-up time, and the damper 5 is closed and ventilation is not performed in other time zones. Has been.
[0014]
Each room is provided with a human sensor 7 for detecting the presence or absence of a person in the room, and the damper 5 of this room is provided on the condition that the human sensor 7 actually detects the presence of the person in the room. It has been opened. That is, even in the time zone set to ventilate by the above program, the damper 5 is not opened when there is no one in the room, thereby avoiding unnecessary ventilation. ing. It should be noted that if there is a resident in the time zone in which ventilation is stopped by the above program, it is preferable to forcibly ventilate, or the program may be prioritized and ventilation may not be performed.
[0015]
Further, the window 8 of each room is provided with a window sensor 9 for detecting the open / closed state, and the damper 5 of the room is opened on the condition that the window 8 is closed by the window sensor 9. Yes. That is, since natural ventilation can be expected when the window 8 is opened, the damper is used when the window 8 is opened even in the time zone set for ventilation according to the above program. 5 is not opened, so that forced ventilation by the exhaust fan 4 is not performed.
[0016]
Each room is provided with a natural ventilation register 10 so that when forced exhaust is performed by the exhaust fan 4, the outside air naturally flows in from there. Further, the exhaust fan 4 may be used to exhaust air from other rooms such as a toilet or a washroom. In that case, the exhaust fan 4 is automatically operated in conjunction with each damper 5 as described above. In addition to stopping, it is preferable to be able to operate and stop by manual operation as usual. Reference numeral 11 denotes a main exhaust duct connected to the exhaust fan 4.
[0017]
As described above, by automatically and independently ventilating each room based on a preset program, the harmful gas concentration in each room can be made sufficiently low so as not to adversely affect residents. Is possible. And according to the above, it is possible to greatly reduce the operating cost as compared with the case where ventilation is continuously performed continuously from each room as in the prior art, and to suppress the increase in the heating and cooling load accompanying ventilation to the minimum. It is possible to avoid uncertainties such as driving by relying on the manual operation of residents.
[0018]
In particular, each room is ventilated by a single exhaust fan 4, so that the equipment and operating costs can be reduced sufficiently compared to the case where an exhaust fan dedicated to ventilation is individually installed in each room. can do. Moreover, the presence sensor 7 and the window sensor 9 are provided so that the ventilation operation is not performed in preference to the program when there is no person in the room or when the window 8 is opened and natural ventilation can be expected. Therefore, it is reasonable without performing unnecessary driving .
[0021]
Furthermore, it goes without saying that the present invention can be applied not only to apartment houses but also to single-family houses , in consideration of the scale of the target house and the required cleanliness. What is necessary is just to perform optimal design within the range which does not deviate. For example, as a ventilation device for a house, a combination of the exhaust fan 4 and the damper 5 as described above is realistic, but depending on the scale of the house to be applied, a larger scale and a higher degree of control can be performed. Of course, such a ventilation device may be adopted. Further, in the present invention, a normal ventilation fan can be used as a ventilation device, and an air conditioning ventilation fan incorporating a total heat exchanger can naturally be used.
[0025]
【The invention's effect】
Room air maintenance device of the present invention is intended to apply to housing having a plurality of chambers, and configured to open on the basis of a predetermined program previously set a damper provided in each room of the duct connected to the exhaust fan Thus, ventilation can be performed independently for each room, and the facility cost and operation cost can be greatly reduced as compared with the case where a ventilation device is provided independently for each room. In particular, the program set for each each chamber since the set to open the damper only during time periods that there are occupants in the room is assumed, it is effective and reasonable to give avoiding unnecessary ventilation In addition , it is more rational because the damper is opened on the condition that the presence or absence of the occupant is detected by the human sensor and the occupant is actually present and the window is closed by the window sensor.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention.
[Explanation of symbols]
1 Chamber 2 Suction port 3 Duct 4 Exhaust fan 5 Damper 6 Timer 7 Human sensor 8 Window 9 Window sensor

Claims (1)

An indoor air maintenance device that is applied to a house having a plurality of rooms that generate harmful gases and that maintains the indoor air of each room clean by exhausting from each room,
An exhaust fan for sucking room air from the suction port provided in each chamber and exhausting it through the duct, a damper installed in the duct of each chamber, and opening each damper based on a predetermined program, respectively It has a timer, a human sensor that detects the presence or absence of a person in each room, and a window sensor that detects the open / closed state of the window in each room,
The program is set to open the damper only during a time period in which it is assumed that there are people in the room,
In a time zone in which the program is set to open the damper, the human sensor detects that there is an occupant in the room in preference to the program, and the window sensor detects the window. Is configured to open the damper of the room on the condition that it is detected that is closed,
An indoor air maintenance device configured to operate the exhaust fan when any of the dampers is opened.

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